401k 2020 Contribution Limit: What You Need to Know

By Samantha Clark

Jun. 17, 2026

The 401k 2020 contribution limit is $19,500, a $500 increase from 2019. These Internal Revenue Service (IRS) limits apply to employees and business owners. They cover retirement savings, payroll tax amounts, and payroll records. As of 2026, the 2020 figures still matter for amended returns and audits.

This guide discusses everything you need to know about 401k 2020 contribution limit.

Key Takeaways

The 401k 2020 contribution limit is $19,500 for employees under age 50
Workers age 50+ can contribute up to $26,000, including the $6,500 catch-up
The combined employer and employee max is $57,000
The IRS adjusts limits annually using cost-of-living adjustments (COLA)
Your 401(k) deduction appears under Pre-Tax Deductions on every paystub

What Is the 401k 2020 Contribution Limit?

The 401k 2020 contribution limit is $19,500. That is the maximum elective deferral a worker can put into a defined contribution plan for 2020. The IRS set this annual deferral limit in IRS Notice 2019-59. It used a cost-of-living adjustment tied to inflation. That is a $500 jump from the 2019 limit of $19,000.

401k 2020 Contribution Limit Breakdown

Contribution Type	2020	2019	Change
Employee deferral (under 50)	$19,500	$19,000	+$500
Catch-up (age 50+)	$6,500	$6,000	+$500
Employee + catch-up max (50+)	$26,000	$25,000	+$1,000
Combined employer + employee max	$57,000	$56,000	+$1,000
Compensation limit	$285,000	$280,000	+$5,000

The 401k 2020 limits above apply to each employee's salary deferral. Every retirement plan contribution you make is tax-deferred. It lowers your taxable income for the plan year. The maximum contribution of $57,000 covers both employee and employer shares.

Per-paycheck: $19,500 ÷ 26 biweekly pay periods = $750/paycheck

$19,500 ÷ 24 semi-monthly = $812.50/paycheck

Catch-Up Contributions for Workers 50 and Older

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Workers 50 or older at any point in 2020 can add an extra $6,500. This is what the catch-up contributions 2020 rules allow. That brings total employee contributions to $26,000. It applies to 401(k), 403(b), and 457(b) plans. You get the full catch-up for all of 2020, not just from your birthday. On a biweekly schedule, that is $1,000 per paycheck pre-tax. Your payroll codes will show this as a pre-tax entry.

Other Retirement Account Limits for 2020

Traditional IRA: $6,000 (under 50) | $7,000 (50+)
Roth IRA: $6,000 (under 50) | $7,000 (50+), same contribution limits 2020 as a Traditional IRA
SIMPLE IRA: $13,500 | $16,500 (50+)
HSA (Health Savings Account): $3,550 (individual) and $7,100 (family)
Solo 401(k) / SEP IRA: $57,000, the 401k max 2020 combined cap for self-employed workers
403(b) / 457(b): $19,500 standard, $26,000 with catch-up, same as 401(k)

Low-income savers may also qualify for the Saver's Tax Credit. It gives up to $1,000 ($2,000 for couples) for 2020 contributions.

How Your 401k Contribution Appears on Your Paystub

Look for the paystub deduction in the Pre-Tax Deductions section. It is labeled "401K," "401(K)," or "RETIREMENT PLAN." Your 401(k) deferral lowers gross pay before FICA and income taxes apply. Update your deferral in ADP, Paychex, or your HR system. Check your next paystub to confirm the change. If the amount is wrong, contact HR within 30 days. Employer contributions like matching or profit-sharing show as a separate line. For business owners, accurate paystubs with correct 401(k) deductions matter for compliance. ThePayStubs.com handles the pre-tax math for you.

401(k) Compliance Rules Employers Should Know

Employers who sponsor a 401(k) must pass nondiscrimination testing each plan year. This checks that a highly compensated employee (earning above $130,000 in 2020) does not gain too much. Many employers use a Safe-Harbor Notice and matching formula to skip these tests. Starting retirement planning early lets compound growth build over decades.

Conclusion

The 2020 401(k) limits are $19,500, $26,000 with catch-up, and $57,000 combined. Keep these on file for payroll audits, tax amendments, and records. Create accurate pay stubs showing correct retirement deductions with ThePayStubs.com.

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Frequently Asked Questions

The 401k 2020 contribution limit was $19,500 for employees under age 50. Workers 50 and older could contribute up to $26,000, including a $6,500 catch-up. The combined max was $57,000. The IRS set these limits in Notice 2019-59. They took effect January 1, 2020.

Workers age 50 or older had a $6,500 catch-up limit in 2020. That brought their total 401(k) to $26,000. This catch-up applies to 401(k), 403(b), and government 457(b) plans. Workers who turn 50 any time in 2020 get the full catch-up for the year.

In 2020, the combined employee and employer limit was $57,000. Workers 50 or older could reach $63,500 with catch-up. Employer contributions cannot push the total above 100% of yearly pay. This limit falls under IRS Section 415(c).

The $19,500 limit applies per employee across all 401(k) plans. If you have two jobs with separate plans, your total still cannot exceed $19,500 in 2020. Each employer's match or profit-sharing is separate. It does not count toward the worker limit.

Check your paystub's pre-tax deductions section. Look for a line labeled "401K," "401(K)," or "RETIREMENT." The amount should match your rate times gross pay. For biweekly workers at the $19,500 limit, each check should show $750. If the amount looks wrong, contact your HR or payroll team within 30 days.

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